Cheap flights from Kolkata to Bihar from ₹ 3,625

The cheapest month to fly to Bihar from Kolkata is in December. Flight prices, which tend to average around ₹ 6,678, are often lower during this time because this is during the off-season. If you aren’t able to travel to Bihar during the month of December, then flying in January is also cheap. Prices for this month can be found on momondo for an average of ₹ 6,868.

Our data shows that Tuesday is the least expensive day to fly to Bihar. Tickets to fly out on this day can be as low as ₹ 7,165. Be sure to avoid booking your departure on a Wednesday as prices are generally higher than usual. According to our data, the average ticket price to Bihar on Wednesday is ₹ 9,283.

Our data shows that the cheapest Kolkata to Bihar flights are usually those with departure times in the morning. Our users have found flights to Bihar in the morning for as low as ₹ 7,476. In the afternoon is when there is more demand to fly to Bihar, so prices are often more expensive at around ₹ 8,179 per ticket.

Fly from Kolkata Netaji S. Chandra to Purnea for the best Kolkata Netaji S. Chandra - Bihar flight prices

There is only 1 cabin class available to choose from on Kolkata to Bihar flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 3% on your flight if you consider stops on a Kolkata to Bihar flight.

Alliance Air and IndiGo are the most popular carriers operating from Kolkata Netaji S. Chandra to Bihar

IndiGo, Air India and SpiceJet are the top three most popular airlines that fly to Bihar from Kolkata according to our data. IndiGo is the first choice among our users, with 85% of people opting to fly with this airline when travelling to Bihar. Keep in mind that there are 3 different airlines that fly to Bihar on a routine basis, so you have a few additional options to choose from.

As of August 2026, there are 2 flights per day flying from Kolkata to Bihar. The most common time of day flights depart is 09:00, with 66% of flights taking off at midday.

As of August 2026, 18 flights take off from Kolkata and land in Bihar each week. The most common flight departure day for this route is Wed, with 17% of weekly flights taking off on this day.